USPTO trademark

REFUSE TO LOSE

Under examinationUSPTOWord markClass 5Class 42Class 44

"REFUSE TO LOSE" is a word mark owned by Annexon, Inc., filed at the USPTO on October 5, 2026. It is under examination and covers classes 5, 42 and 44.

View Annexon, Inc. portfolioGet this data via the API
Official USPTO record
REFUSE TO LOSE trademark as filed
As filed with the USPTO
Status
Under examination
Since October 5, 2026
Filed
October 5, 2026
Registered
Not yet
Expires
Not recorded
Application no.
50144503
Registration no.
Not yet
Office
USPTO
United States Patent and Trademark Office
Mark type
Word mark
3 classes
Ownership

Who owns REFUSE TO LOSE

The owner on file, matched to the company behind it. Every owner-name spelling for that company is grouped on its page.

Owner

Annexon, Inc.

ANNX · Brisbane, United States

10 trademarks in the portfolioView company

Representative

Joshua S. Jarvis, Esq.

Foley Hoag LLP

Goods and services

What the mark covers

The products and services REFUSE TO LOSE is filed for, grouped by Nice class.

  • Pharmaceutical preparations for the treatment of immune system related diseases and disorders, complement-mediated diseases and disorders, neurological diseases and disorders, and ophthalmic diseases and disorders; Pharmaceutical preparations for the treatment of Guillain-Barré syndrome, macular degeneration, geographic atrophy, Huntington's Disease, amyotrophic lateral sclerosis (ALS), lupus, cold agglutinin disease (CAD), chronic inflammatory demyelinating polyneuropathy (CIDP), and myasthenia gravis (MG)

  • Pharmaceutical research and development; Consulting services in the field of pharmaceutical research and development; Providing medical and scientific research information in the field of pharmaceuticals and clinical trials

  • Providing medical information; Providing medical information in the field of pharmaceuticals

History

What has happened so far

Steps recorded by the USPTO, newest first.

  1. New application office supplied data entered
  2. New application entered
  3. Application filing receipt mailed
FAQ

About REFUSE TO LOSE

Who owns the trademark "REFUSE TO LOSE"?

The USPTO trademark "REFUSE TO LOSE" (application 50144503) is owned by Annexon, Inc.

What is the status of "REFUSE TO LOSE"?

Its status at the USPTO is: under examination.

API

Get this data via the API

Everything on this page comes from the Signa API. Pull REFUSE TO LOSE and marks like it into your own product with one request.

  • GET/v1/trademarks/{id}

    The full record: owners, classes, dates and images

  • GET/v1/trademarks/{id}/events

    Every step in the office history

  • GET/v1/proceedings?trademark_id={id}

    Oppositions and cancellations against the mark

Get API keyView docs
GET /v1/trademarks/{id}
ID=tm_01a1115a-8d90-774a-9c72-65678c35184c
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_01a1115a-8d90-774a-9c72-65678c35184c",
  "object": "trademark",
  "mark_text": "REFUSE TO LOSE",
  "status": {
    "primary": "pending",
    "stage": "examining"
  },
  "office_code": "US",
  "application_number": "50144503",
  "filing_date": "2026-10-05",
  "nice_classes": [
    5,
    42,
    44
  ],
  "owners": [
    {
      "name": "Annexon, Inc.",
      "entity_id": "ent_019eb70c-666c-7758-8e73-27bd0faa6595"
    }
  ]
}